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棉花品种鄂沙28中后期根系发达,吸肥能力强,个体及群体的光合速率高,物质运转分配较合理,但是苗期长势较弱,生产上存在“难拿苗”的问题,从而使高产性能受到一定的限制。为此,我们在1982年试验的基础上,1983年进一步对鄂沙28苗期生理特性。抗逆性以及保全苗、争壮苗的有关措施进行了一系列研究,现将结果报道如下。
The middle and late roots of cotton cultivar E’sha 28 developed strong root absorption ability, high photosynthesis rate and high photosynthetic rate of individuals and groups, while the distribution of material movement was more reasonable. However, the growth of seedling stage was weak and there was a problem of “hard to take seedlings” in production, Performance is subject to certain restrictions. For this reason, based on the 1982 trial, we further studied the physiological characteristics of the seedlings of the Husha 28 in 1983. Stress resistance and the protection of seedlings, Zheng strong seedlings of the relevant measures conducted a series of studies, the results are reported below.